Last Updated: May 11, 2026

Effective Date: May 11, 2026

TianHong AI ("we," "us," or "our") is operated by TianHong Technology. This Privacy Policy explains how we collect, use, store, and protect your personal information when you use the TianHong AI platform and related services (the "Service"), including our AI video generation and multi-platform publishing features.

By using our Service, you agree to the collection and use of information in accordance with this policy. If you do not agree, please discontinue use immediately.

1. Information We Collect

1.1 Account Information

When you register or log in, you may provide:

Mobile phone number (required for real-name verification under applicable laws)
Email address
Third-party account information (avatar, nickname, email) when you choose to log in via Google, TikTok, Douyin, or other platforms

1.2 TikTok Integration Data

When you choose to connect your TikTok account, we collect and store the following information with your explicit consent:

TikTok Open ID and Union ID
TikTok nickname and profile avatar
Access tokens and refresh tokens (encrypted at rest and in transit)
Video publish status and publish IDs

We use this data solely to enable video publishing to your TikTok account on your behalf. We do not share your TikTok data with any third parties.

1.3 YouTube Integration Data

When you choose to connect your YouTube account, we collect and store the following information with your explicit consent:

YouTube channel ID, channel name, and profile avatar
OAuth 2.0 access tokens and refresh tokens (encrypted at rest and in transit)
Video metadata (title, description, tags, category, privacy status) you provide when publishing
Video publish status and video IDs

We use this data solely to:

Display your channel information in our account selection interface
Publish videos to your YouTube channel when you explicitly click "Publish"

We do NOT access, read, modify, or delete your existing videos, playlists, or comments. All API calls are user-initiated.

1.4 AI-Generated Content (AIGC) Data

When you use our AI video generation feature, we process:

Text prompts and image inputs you provide
Generated video files and metadata
Your selected publishing settings (privacy level, captions, hashtags, cover frame)

All AI-generated videos published to TikTok or YouTube are labeled as "AI-generated content" in accordance with platform content guidelines.

1.5 Usage and Device Information

To ensure service stability and security, we collect:

Device model, operating system version, and device identifiers
IP address and network access method
Service logs, clickstream data, and search queries
Crash reports and performance data

1.6 Payment Information

For paid services, payment details (name, card type, card number, expiry date, phone number) are collected and processed by our third-party payment providers. We do not store your full card details.

2. How We Use Your Information

We use your information for the following purposes:

To provide, maintain, and improve the Service
To authenticate your identity and manage your account
To process AI video generation requests and publish videos to connected platforms (YouTube, TikTok, Douyin, etc.)
To send service notifications, security alerts, and verification codes
To detect and prevent fraud, abuse, and security threats
To comply with legal obligations

3. Data Sharing and Third Parties

We do not sell your personal information. We share data only with:

YouTube: When you authorize us, we transmit video files and publish metadata to YouTube's servers via the YouTube Data API. This sharing is governed by Google's Privacy Policy and YouTube's Terms of Service.
TikTok: When you authorize us, we transmit video files and publish metadata to TikTok's servers via the TikTok Content Posting API. This sharing is governed by TikTok's Privacy Policy and Terms of Service.
Payment processors: To process subscription payments
Cloud infrastructure providers: To host and store your data securely
Legal authorities: When required by applicable law or to protect our rights

4. Data Storage and Security

4.1 Storage Location

Your personal data is stored on servers located in Hong Kong. If you are accessing the Service from outside this region, your data may be transferred across borders in compliance with applicable data protection laws.

4.2 Security Measures

We implement industry-standard security measures, including:

SSL/TLS encryption for data in transit
AES-256 encryption for sensitive data at rest
Role-based access controls and regular security audits
Internal data handling policies limiting access to authorized personnel only

While we strive to protect your data, no internet transmission is 100% secure. We encourage you to use strong passwords and keep your account credentials confidential.

5. Data Retention

We retain your personal information only for as long as necessary to provide the Service or as required by law:

Account data: retained until you delete your account
YouTube/TikTok tokens: retained until you disconnect your account or the token expires
AI-generated videos: retained according to your storage plan; deleted upon account deletion
Log data: retained for up to 12 months for security and analytics purposes

Upon account deletion, we will delete or anonymize your personal data within 30 days, except where retention is required by law.

6. Your Rights

You have the right to:

Access, correct, or delete your personal information
Withdraw consent for data processing (note that this may limit certain features)
Export your data in a portable format
Lodge a complaint with a data protection authority

To exercise these rights, contact us at litosglobal@126.com. We will respond within 15 business days after verifying your identity.

7. Third-Party Authorization and Revocation

You may connect or disconnect your TikTok or YouTube account at any time through the Account Settings page. Disconnecting your account will immediately revoke our access and delete all stored tokens from our servers. This action does not affect videos already published to those platforms.

You may also revoke access directly from:

Google Account: https://myaccount.google.com/permissions
TikTok: https://www.tiktok.com/setting

8. Children's Privacy

Our Service is not intended for users under 18 years of age. If you are under 18, please use the Service only under the supervision of a parent or legal guardian. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such data, please contact us immediately.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Material changes will be notified via email or a prominent notice on our website. Continued use of the Service after changes constitutes acceptance of the revised policy.

10. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us:

Website: https://en.litosglobal.com
Email: litosglobal@126.com